Safety connection for gas-fixtures.



D. TANGNBY.

SAFETY CONNECTION FOR. GAS FIXTURES.

APPLICATION FILED MAY'lY, 1909.

Patented 001;. 26, 1909.

attoznmg ll'll ll l idilrl SEATEfiEATENT @hFlClil DENNIS TANGNE'E, FPHILAEEL'PEIA, PENNSYLVANIA.

'- SAFETY CONNEUBION FOR GASJEETURES.

Specification of Letters Patent. Patented Oct, 2%., igilifih Applicstionone Easy 17, 1909. Scrialli'o. 496,388.

invention beingto provide a spring-r pressed valve Within the gas pipe,so that said valve will be open when the tube or pipe is forced onto aribbed extension, and will be automatically closed. when the tube,either through accident or design is removed from the ribbed extension,thus ob 'ia'ting any possibility of the escape of gas in the event ofaccidental disconnection of the pipe or tube.

-Willi these and other objects in view, the invention consists incertain novel features of construction, and combinations and anrangements of parts as will be more fully hereinafter described andpointed out in the claims.

In the accompanying drawings, Figure l, is a view in elevationillustrating the application of my improvements. Fig. 2, is an enlargedfragmentary view in longitudinal section. 3, is a view in section on theline 33 of 2. Fig. l, a view in section on the line H Of Fig. 2, andFig. 5, is

a view in section on th line 5-5 of 2..

1 represents a. gassupply cook, and 2 a gas stove having an ordinaryribbed extension 3 thereon, and l is the pipe or tube connecting thecool; 1 wi h the ribbed extension 8. This tube 4 at one end is securedby a metal collar 5 to a coupling 6, the. latter having a' series of gaspassages 7, and central opening 8. This coupling 6 is externally screwthreaded to receive a metal tube 9. and the latter is internally screwthreaded at both ends, and is also screwed upon the threaded end of acoupling 10, and the latter has a threaded or ribbed end ll. to which:in elastic sleeve 12 is secured, and adapted to be forced onto theribbed extension 3. This coupling 10 is of tubular form, and provides avalve seat 13 on its inner end against which a valve ll is normallysealed by a coiled spring 15 Within the tube 9, and bearing at its endsagainst couplings 6 and valve 14. This valve has a guide stem lb, whichprojccts throughthe central opening 8 in coupling 6, and is alsoprovided with a forward .i'fso desired.

extension- 17, angular in cross section where it' passes through thetubular coupling 16, and at its free end is bent forming an enlergemcnt18, t0 be engaged by the ribbed extension 3, to force the valve 14 fromits seat and allow a free passage of gas. The other end of the tube isshown provided with an ordinary elastic sleeve 19, but may also have thesafety mechanism above explained The operation is as follows: When theelastic sleeve 1:2 is forced onto the ribbed extension 8, the valve willbe forced beckivard from its seat and the gas may freely flow to thestove or other fixture. iii the elastic sleeve 12 is drawn oil theextension 3, either through accident or design, spring 15 willimmediately force valve llagainst its seat, and prevent any escape ofgas, thus obvisting any possibility of accidents, due to this veryfrequent cause.

Various slight changes mightbe made in the general form and arrangementof parts described Without departing from my invention, and hence I donot restrict myself to the precise details set forth, but considermyself at liberty to make such changes and alterations as, fnirly iallWithin the spirit and scope of the claims.

Having thusdescribed my invention What I claim new and desire to secureby Letters Patent is:

1. In a device of the character described, the combination with a tube,an elastic sleeve, and couplings secured to said tube and s'aid elasticsleeve, 2. metal tube connecting said couplings, a. spring-pressed valvein said tube normally closing the passage through the coupling securedto the elastic sleeve, and on extension on said valve projecting throughthe said last mentioned coupling and into the elastic sleeve.

2. in a device of the character described, the combination with a tubeand an elastic sleeve, of tubular couplings connected to the tube andsleeve, a metal tube connecting said couplings, a spring-pressed valveseated against the coupling secured to the sleeve, s-

I coupling, a second coupling connectin said metal tube with the elasticsleeve, an having a gas passage therethrough, a valve in sa1d metaltube, a spring in said metal tube .bearing at its ends against the firstmensaid extension ,bent forming an enlargement,

substantially as and for the purpose set forth.

' 4. In a device of the character described, the combination with a'tubeand an elastic j sleeve, of a coupling secured to the tube and having acentral opening, and a series of gas passages around said centralopening,

a metal tube connected to said coupling, a

second coupling connecting said metal tube with the sleeve, and having agas passage therethrough, a spring-pressed valve in said metal tubenormally closing against the end of said last mentioned coupling, a stemon said valve pro'ecting through the central opening in the rstmentioned coupling, and an extension I on said valve projecting throughthe coupling between the elastic sleeve and valve, and having anenlargement in said elastic. sleeve, substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses. x

DENNIS TANGivEY.

Witnesses: i

' R. H. KRENKEL,

J. A. L. MULHALL.

